Related papers: ZTF SN Ia DR2: Overview

ZTF SN Ia DR2: Colour standardisation of Type Ia Supernovae and its dependence on environment

As type Ia supernova (SN Ia) cosmology transitions from a statistics-dominated to a systematics-dominated era, it is crucial to understand the remaining unexplained uncertainties that affect their luminosity, such as those stemming from…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-19 M. Ginolin , M. Rigault , Y. Copin , B. Popovic , G. Dimitriadis , A. Goobar , J. Johansson , K. Maguire , J. Nordin , M. Smith , M. Aubert , C. Barjou-Delayre , U. Burgaz , B. Carreres , S. Dhawan , M. Deckers , F. Feinstein , D. Fouchez , L. Galbany , C. Ganot , T. de Jaeger , Y. -L. Kim , D. Kuhn , L. Lacroix , T. E. Müller-Bravo , P. Nugent , B. Racine , P. Rosnet , D. Rosselli , F. Ruppin , J. Sollerman , J. H. Terwel , A. Townsend , R. Dekany , M. Graham , M. Kasliwal , S. L. Groom , J. Purdum , B. Rusholme , S. van der Walt

Diversity of supernovae Ia determined using equivalent widths of Si II 4000

Spectroscopic and photometric properties of low and high-z supernovae Ia (SNe Ia) have been analyzed in order to achieve a better understanding of their diversity and to identify possible SN Ia sub-types. We use wavelet transformed spectra…

Astrophysics · Physics 2009-01-05 V. Arsenijevic , S. Fabbro , A. M. Mourao , A. J. Rica da Silva

The Discovery of the Most Distant Known Type Ia Supernova at Redshift 1.914

We present the discovery of a Type Ia supernova (SN) at redshift $z = 1.914$ from the CANDELS multi-cycle treasury program on the \textit{Hubble Space Telescope (HST)}. This SN was discovered in the infrared using the Wide-Field Camera 3,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 David O. Jones , Steven A. Rodney , Adam G. Riess , Bahram Mobasher , Tomas Dahlen , Curtis McCully , Teddy F. Frederiksen , Stefano Casertano , Jens Hjorth , Charles R. Keeton , Anton Koekemoer , Louis-Gregory Strolger , Tommy G. Wiklind , Peter Challis , Or Graur , Brian Hayden , Brandon Patel , Benjamin J. Weiner , Alexei V. Filippenko , Peter Garnavich , Saurabh W. Jha , Robert P. Kirshner , Henry C. Ferguson , Norman A. Grogin , Dale Kocevski

Optical Spectroscopy of Type Ia Supernovae by the Carnegie Supernova Projects I and II

We present the second and final release of optical spectroscopy of Type Ia Supernovae (SNe Ia) obtained during the first and second phases of the Carnegie Supernova Project (CSP-I and CSP-II). The newly released data consist of 148 spectra…

High Energy Astrophysical Phenomena · Physics 2024-05-08 N. Morrell , M. M. Phillips , G. Folatelli , M. D. Stritzinger , M. Hamuy , N. B. Suntzeff , E. Y. Hsiao , F. Taddia , C. R. Burns , P. Hoeflich , C. Ashall , C. Contreras , L. Galbany , J. Lu , A. L. Piro , J. Anais , E. Baron , A. Burrow , L. Busta , A. Campillay , S. Castellón , C. Corco , T. Diamond , W. L. Freedman , C. González , K. Krisciunas , S. Kumar , S. E. Persson , J. Serón , M. Shahbandeh , S. Torres , S. A. Uddin , J. P. Anderson , C. Baltay , C. Gall , A. Goobar , E. Hadjiyska , S. Holmbo , M. Kasliwal , C. Lidman , G. H. Marion , P. Mazzali , P. Nugent , S. Perlmutter , G. Pignata , D. Rabinowitz , M. Roth , S. D. Ryder , B. J. Shappee , J. Vinkó , J. C. Wheeler , T. de Jaeger , P. Lira , M. T. Ruiz , J. A. Rich , J. L. Prieto , F. Di Mille , D. Osip , G. Blanc , P. Palunas

Prospects of Searching for Type Ia Supernovae with 2.5-m Wide Field Survey Telescope

Type Ia Supernovae (SNe Ia) are the thermonuclear explosion of a carbon-oxygen white dwarf (WD) and are well-known as a distance indicator. However, it is still unclear how WDs increase their mass near the Chandrasekhar limit and how the…

Solar and Stellar Astrophysics · Physics 2022-12-27 Maokai Hu , Lei Hu , Ji-an Jiang , Lin Xiao , Lulu Fan , Junjie Wei , Xuefeng Wu

Subaru Spectroscopy of SDSS-II Supernovae

The Sloan Digital Sky Survey II (SDSS-II) Supernova Survey discovered Type Ia supernovae (SNe Ia) in an almost unexplored intermediate redshift range of $0.05 < z < 0.4$ and provided densely sampled multi-color light curves for SN…

Cosmology and Nongalactic Astrophysics · Physics 2011-01-11 Kohki Konishi , Naoki Yasuda , Kouichi Tokita , Mamoru Doi , Yutaka Ihara , Tomoki Morokuma , Naohiro Takanashi , Jakob Nordin , John Marriner , Linda Östman , Michael Richmond , Masao Sako , Donald P. Schneider , J. Craig Wheeler

The Carnegie Supernova Project: Analysis of the First Sample of Low-Redshift Type-Ia Supernovae

We present the analysis of the first set of low-redshift Type Ia supernovae (SNe Ia) by the Carnegie Supernova Project. Well-sampled, high-precision optical (ugriBV) and near-infrared (NIR; YJHKs) light curves obtained in a well-understood…

Cosmology and Nongalactic Astrophysics · Physics 2011-04-07 Gaston Folatelli , M. M. Phillips , Christopher R. Burns , Carlos Contreras , Mario Hamuy , W. L. Freedman , S. E. Persson , Maximilian Stritzinger , Nicholas B. Suntzeff , Kevin Krisciunas , Luis Boldt , Sergio Gonzalez , Wojtek Krzeminski , Nidia Morrell , Miguel Roth , Francisco Salgado , Barry F. Madore , David Murphy , Pamela Wyatt , Weidong Li , Alexei V. Filippenko , Nicole Miller

The Foundation Supernova Survey: Motivation, Design, Implementation, and First Data Release

The Foundation Supernova Survey aims to provide a large, high-fidelity, homogeneous, and precisely-calibrated low-redshift Type Ia supernova (SN Ia) sample for cosmology. The calibration of the current low-redshift SN sample is the largest…

High Energy Astrophysical Phenomena · Physics 2018-05-02 Ryan J. Foley , Daniel Scolnic , Armin Rest , S. W. Jha , Y. -C. Pan , A. G. Riess , P. Challis , K. C. Chambers , D. A. Coulter , K. G. Dettman , M. M. Foley , O. D. Fox , M. E. Huber , D. O. Jones , C. D. Kilpatrick , R. P. Kirshner , A. S. B. Schultz , M. R. Siebert , H. A. Flewelling , B. Gibson , E. A. Magnier , J. A. Miller , N. Primak , S. J. Smartt , K. W. Smith , R. J. Wainscoat , C. Waters , M. Willman

Photometric selection of high-redshift type Ia supernovae

We present a method for selecting high-redshift type Ia supernovae (SNe Ia) located via rolling SN searches. The technique, using both color and magnitude information of events from only 2-3 epochs of multi-band real-time photometry, is…

Astrophysics · Physics 2008-11-26 M. Sullivan , D. A. Howell , K. Perrett , P. Nugent , P. Astier , E. Aubourg , D. Balam , S. Basa , R. Carlberg , A. Conley , S. Fabbro , D. Fouchez , J. Guy , I. Hook , H. Lafoux , J. D. Neill , R. Pain , N. Palanque-Delabrouille , C. Pritchet , N. Regnault , J. Rich , R. Taillet , G. Aldering , S. Baumont , J. Bronder , M. Filiol , R. Knop , S. Perlmutter , C. Tao

CfA4: Light Curves for 94 Type Ia Supernovae

We present multi-band optical photometry of 94 spectroscopically-confirmed Type Ia supernovae (SN Ia) in the redshift range 0.0055 to 0.073, obtained between 2006 and 2011. There are a total of 5522 light curve points. We show that our…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Malcolm Hicken , Peter Challis , Robert P. Kirshner , Armin Rest , Claire E. Cramer , W. Michael Wood-Vasey , Gaspar Bakos , Perry Berlind , Warren R. Brown , Nelson Caldwell , Mike Calkins , Thayne Currie , Kathy de Kleer , Gil Esquerdo , Mark Everett , Emilio Falco , Jose Fernandez , Andrew S. Friedman , Ted Groner , Joel Hartman , Matthew J. Holman , Robert Hutchins , Sonia Keys , David Kipping , Dave Latham , George H. Marion , Gautham Narayan , Michael Pahre , Andras Pal , Wayne Peters , Gopakumar Perumpilly , Ben Ripman , Brigitta Sipocz , Andrew Szentgyorgyi , Sumin Tang , Manuel A. P. Torres , Amali Vaz , Scott Wolk , Andreas Zezas

Identification of Type Ia Supernovae at Redshift 1.3 and Beyond with the Advanced Camera for Surveys on HST

We present discoveries of SNe Ia at z > 1 and the photometric diagnostic used to discriminate them from other types of SNe detected during the GOODS Hubble Space Telescope Treasury program with the Advanced Camera for Surveys (ACS).…

Astrophysics · Physics 2016-08-30 Adam G. Riess , Louis-Gregory Strolger , John Tonry , Zlatan Tsvetanov , Stefano Casertano , Henry C. Ferguson , Bahram Mobasher , Peter Challis , Nino Panagia , Alexei V. Filippenko , Weidong Li , Ryan Chornock , Robert P. Kirshner , Bruno Leibundgut , Mark Dickinson , Anton Koekemoer , Norman A. Grogin , Mauro Giavalisco

The Pantheon+ Analysis: The Full Dataset and Light-Curve Release

Here we present 1701 light curves of 1550 spectroscopically confirmed Type Ia supernovae (SNe Ia) that will be used to infer cosmological parameters as part of the Pantheon+ SN analysis and the SH0ES (Supernovae and H0 for the Equation of…

Cosmology and Nongalactic Astrophysics · Physics 2022-10-26 Dan Scolnic , Dillon Brout , Anthony Carr , Adam G. Riess , Tamara M. Davis , Arianna Dwomoh , David O. Jones , Noor Ali , Pranav Charvu , Rebecca Chen , Erik R. Peterson , Brodie Popovic , Benjamin M. Rose , Charlotte Wood , Peter J. Brown , Ken Chambers , David A. Coulter , Kyle G. Dettman , Georgios Dimitriadis , Alexei V. Filippenko , Ryan J. Foley , Saurabh W. Jha , Charles D. Kilpatrick , Robert P. Kirshner , Yen-Chen Pan , Armin Rest , Cesar Rojas-Bravo , Matthew R. Siebert , Benjamin E. Stahl , WeiKang Zheng

ZTF SN Ia DR2: Improved SN Ia colors through expanded dimensionality with SALT3+

Type Ia supernovae (SNe Ia) are a key probe in modern cosmology, as they can be used to measure luminosity distances at gigaparsec scales. Models of their light-curves are used to project heterogeneous observed data onto a common basis for…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-14 W. D. Kenworthy , A. Goobar , D. O. Jones , J. Johansson , S. Thorp , R. Kessler , U. Burgaz , S. Dhawan , G. Dimitriadis , L. Galbany , M. Ginolin , Y. -L. Kim , K. Maguire , T. E. Müller-Bravo , P. Nugent , J. Nordin , B. Popovic , P. J. Pessi , M. Rigault , P. Rosnet , J. Sollerman , J. H. Terwel , A. Townsend , R. R. Laher , J. Purdum , D. Rosselli , B. Rusholme

Photometric Identification of Type Ia Supernovae at Moderate Redshift

Large photometric surveys with the aim of identifying many Type Ia supernovae (SNe) at moderate redshift are challenged in separating these SNe from other SN types. We are motivated to identify Type Ia SNe based only on broadband…

Astrophysics · Physics 2008-11-26 Benjamin D. Johnson , Arlin P. S. Crotts

First Cosmology Results using Type Ia Supernovae from the Dark Energy Survey: Constraints on Cosmological Parameters

We present the first cosmological parameter constraints using measurements of type Ia supernovae (SNe Ia) from the Dark Energy Survey Supernova Program (DES-SN). The analysis uses a subsample of 207 spectroscopically confirmed SNe Ia from…

Cosmology and Nongalactic Astrophysics · Physics 2019-05-13 T. M. C. Abbott , S. Allam , P. Andersen , C. Angus , J. Asorey , A. Avelino , S. Avila , B. A. Bassett , K. Bechtol , G. M. Bernstein , E. Bertin , D. Brooks , D. Brout , P. Brown , D. L. Burke , J. Calcino , A. Carnero Rosell , D. Carollo , M. Carrasco Kind , J. Carretero , R. Casas , F. J. Castander , R. Cawthon , P. Challis , M. Childress , A. Clocchiatti , C. E. Cunha , C. B. D'Andrea , L. N. da Costa , C. Davis , T. M. Davis , J. De Vicente , D. L. DePoy , S. Desai , H. T. Diehl , P. Doel , A. Drlica-Wagner , T. F. Eifler , A. E. Evrard , E. Fernandez , A. V. Filippenko , D. A. Finley , B. Flaugher , R. J. Foley , P. Fosalba , J. Frieman , L. Galbany , J. Garcia-Bellido , E. Gaztanaga , T. Giannantonio , K. Glazebrook , D. A. Goldstein , S. Gonzalez-Gaitan , D. Gruen , R. A. Gruendl , J. Gschwend , R. R. Gupta , G. Gutierrez , W. G. Hartley , S. R. Hinton , D. L. Hollowood , K. Honscheid , J. K. Hoormann , B. Hoyle , D. J. James , T. Jeltema , M. W. G. Johnson , M. D. Johnson , E. Kasai , S. Kent , R. Kessler , A. G. Kim , R. P. Kirshner , E. Kovacs , E. Krause , R. Kron , K. Kuehn , S. Kuhlmann , N. Kuropatkin , O. Lahav , J. Lasker , G. F. Lewis , T. S. Li , C. Lidman , M. Lima , H. Lin , E. Macaulay , M. A. G. Maia , K. S. Mandel , M. March , J. Marriner , J. L. Marshall , P. Martini , F. Menanteau , C. J. Miller , R. Miquel , V. Miranda , J. J. Mohr , E. Morganson , D. Muthukrishna , A. Möller , E. Neilsen , R. C. Nichol , B. Nord , P. Nugent , R. L. C. Ogando , A. Palmese , Y. -C. Pan , A. A. Plazas , M. Pursiainen , A. K. Romer , A. Roodman , E. Rozo , E. S. Rykoff , M. Sako , E. Sanchez , V. Scarpine , R. Schindler , M. Schubnell , D. Scolnic , S. Serrano , I. Sevilla-Noarbe , R. Sharp , M. Smith , M. Soares-Santos , F. Sobreira , N. E. Sommer , H. Spinka , E. Suchyta , M. Sullivan , E. Swann , G. Tarle , D. Thomas , R. C. Thomas , M. A. Troxel , B. E. Tucker , S. A. Uddin , A. R. Walker , W. Wester , P. Wiseman , R. C. Wolf , B. Yanny , B. Zhang , Y. Zhang

ZTF SN Ia DR2: The secondary maximum in Type Ia supernovae

Type Ia supernova (SN Ia) light curves have a secondary maximum that exists in the $r$, $i$, and near-infrared filters. The secondary maximum is relatively weak in the $r$ band, but holds the advantage that it is accessible, even at high…

High Energy Astrophysical Phenomena · Physics 2025-02-19 M. Deckers , K. Maguire , L. Shingles , G. Dimitriadis , M. Rigault , M. Smith , A. Goobar , J. Nordin , J. Johansson , M. Amenouche , U. Burgaz , S. Dhawan , M. Ginolin , L. Harvey , W. D. Kenworthy , Y. -L. Kim , R. R. Laher , N. Luo , S. R. Kulkarni , F. J. Masci , T. E. Müller-Bravo , P. E. Nugent , N. Pletskova , J. Purdum , B. Racine , J. Sollerman , J. H. Terwel

Comparative Direct Analysis of Type Ia Supernova Spectra. V. Insights from A Larger Sample and Quantitative Subclassification

A comparative study of optical spectra of Type Ia supernovae (SNe Ia) is extended, in the light of new data. The discussion is framed in terms of the four groups defined in previous papers of this series: core normal (CN); broad line (BL);…

Solar and Stellar Astrophysics · Physics 2009-11-13 David Branch , Leeann Chau Dang , E. Baron

Spectra of High-Redshift Type Ia Supernovae and a Comparison with their Low-Redshift Counterparts

We present spectra for 14 high-redshift (0.17 < z < 0.83) supernovae, which were discovered by the Supernova Cosmology Project as part of a campaign to measure cosmological parameters. The spectra are used to determine the redshift and…

Astrophysics · Physics 2008-11-26 I. M. Hook , D. A. Howell , G. Aldering , R. Amanullah , M. S. Burns , A. Conley , S. E. Deustua , R. Ellis , S. Fabbro , V. Fadeyev , G. Folatelli , G. Garavini , R. Gibbons , G. Goldhaber , A. Goobar , D. E. Groom , A. G. Kim , R. A. Knop , M. Kowalski , C. Lidman , S. Nobili , P. E. Nugent , R. Pain , C. R. Pennypacker , S. Perlmutter , P. Ruiz-Lapuente , G. Sainton , B. E. Schaefer , E. Smith , A. L. Spadafora , V. Stanishev , R. C. Thomas , N. A. Walton , L. Wang , W. M. Wood-Vasey

A Measurement of the Rate of type-Ia Supernovae at Redshift $z\approx$ 0.1 from the First Season of the SDSS-II Supernova Survey

We present a measurement of the rate of type Ia supernovae (SNe Ia) from the first of three seasons of data from the SDSS-II Supernova Survey. For this measurement, we include 17 SNe Ia at redshift $z\le0.12$. Assuming a flat cosmology with…

Astrophysics · Physics 2010-11-05 Benjamin Dilday , R. Kessler , J. A. Frieman , J. Holtzman , J. Marriner , G. Miknaitis , R. C. Nichol , R. Romani , M. Sako , B. Bassett , A. Becker , D. Cinabro , F. DeJongh , D. L. Depoy , M. Doi , P. M. Garnavich , C. J. Hogan , S. Jha , K. Konishi , H. Lampeitl , J. L. Marshall , D. McGinnis , J. L. Prieto , A. G. Riess , M. W. Richmond , D. P. Schneider , M. Smith , N. Takanashi , K. Tokita , K. van der Heyden , N. Yasuda , C. Zheng , J. Barentine , H. Brewington , C. Choi , A. Crotts , J. Dembicky , M. Harvanek , M. Im , W. Ketzeback , S. J. Kleinman , J. Krzesiński , D. C. Long , E. Malanushenko , V. Malanushenko , R. J. McMillan , A. Nitta , K. Pan , G. Saurage , S. A. Snedden , S. Watters , J. C. Wheeler , D. York

Observations of Type Ia Supernovae, and Challenges for Cosmology

Observations of Type Ia supernovae (SNe Ia) reveal correlations between their luminosities and light-curve shapes, and between their spectral sequence and photometric sequence. Assuming SNe Ia do not evolve at different redshifts, the…

Astrophysics · Physics 2007-05-23 Weidong Li , Alexei V. Filippenko